The meaning of an empty mountain after rain stands in the autumn evening.

This poem means that the weather is fine.

"Standing in the autumn night, the mountains are empty after the rain" means that the valley that has just rained is particularly empty and fresh. In the evening, the weather is getting colder, giving people a feeling that autumn is coming. This sentence comes from Autumn Night in the Deep Mountains written by the Tang Dynasty poet Wang Wei. In this poem, the author shows the beauty and tranquility of nature by describing the scenery of the valley after the rain. The empty mountain after the rain represents a kind of fresh and quiet beauty, which makes people relaxed and happy.